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Energy absorption in the laser-QED regime

Abstract:
A theoretical and numerical investigation of non-ponderomotive absorption at laser intensities relevant to quantum electrodynamics is presented. It is predicted that there is a regime change in the dependence of fast electron energy on incident laser energy that coincides with the onset of pair production via the Breit-Wheeler process. This prediction is numerically verified via an extensive campaign of QED-inclusive particle-in-cell simulations. The dramatic nature of the power law shift leads to the conclusion that this process is a candidate for an unambiguous signature that future experiments on multi-petawatt laser facilities have truly entered the QED regime.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41598-019-45536-x

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Role:
Author


Publisher:
Springer Nature
Journal:
Scientific Reports More from this journal
Volume:
9
Article number:
8956
Publication date:
2019-06-20
Acceptance date:
2019-06-07
DOI:
EISSN:
2045-2322


Pubs id:
pubs:1010272
UUID:
uuid:c403d6d5-2c7c-407c-aae5-64d6e0fbae7f
Local pid:
pubs:1010272
Source identifiers:
1010272
Deposit date:
2019-06-10

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